diff --git a/lib/marked.js b/lib/marked.js
index 6e17d58f6b..fd56e4ed9b 100644
--- a/lib/marked.js
+++ b/lib/marked.js
@@ -114,7 +114,7 @@ function Lexer(options) {
   }
   
   for(var i = 0; i < this.options.disabledElements.length; i++) {
-    this.rules[this.options.disabledElements[i]].exec = function() {};
+    this.rules[this.options.disabledElements[i]] = noop;
   }
 }